Description
Three boxwood clinometers, all in good condition, with original cases. All three have working spirit levels.
1. Unsigned, with fixed compass, marked ‘Rise in inches per yard.’
2 Unsigned
3. Marked for T. B. Winter, Newcastle on Tyne, with Singer patent compass with mother of pearl dial
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Dealer information
Fletcher
Fletcher Wallis
Fletcher Wallis sells objects and books relating to the history of science, medicine and technology Arcade. He publishes books through Vernier Press, including Antique Medicine Chests, and Corkscrew Patents from 1795. He has been dealing for forty eight years.